The special thing about these ball safety pins is the small, plum-coloured plastic ball in lieu of the plastic spiral. The ball's task is to treat the material gently with minimum friction. Whereas a classic safety pin is more associated with an aid for temporarily sewing fabrics, ball safety pins are more related to a stylish accessory due to this small visual change. These nails in sizes 34, 41, and 48 mm are made of rust-protected steel and stand out due to their burr and pore-free, polished surface with the usual, reliable opening and closing force.